Paging occasion start determination

Abstract

Methods and apparatus, including computer program products, are provided for monitoring occasions in a downlink, such as paging occasions. In some example embodiments, there may be provided an apparatus that includes at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least receive information indicating a start of one or more paging occasions within at least a portion of a frame and monitor the one or more paging occasions in accordance with the received information. Related systems, methods, and articles of manufacture are also described.

What is claimed: 
     
       1. An apparatus comprising:
 at least one processor; and 
 at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least:
 receive, from a base station, information indicating a start of one or more paging occasions within at least a portion of a subframe, the information comprising a bit map indicating the start of the one or more paging occasions within at least the portion of the subframe, wherein a bit length of the bit map is based on a subcarrier spacing being used, such that the start of the one or more paging occasions is based on the bit length and the subcarrier spacing being used; and 
 monitor the one or more paging occasions in accordance with the received information including the bit map. 
 
 
     
     
       2. The apparatus of  claim 1 , wherein the base station provides a different bit map based on the subcarrier spacing being used at the apparatus. 
     
     
       3. The apparatus of  claim 2 , wherein the bit length of the bitmap depends on a quantity of slots, the quantity of slots based on the subcarrier spacing being used by the apparatus and a time division duplex pattern length being used by the apparatus. 
     
     
       4. The apparatus of  claim 2 , wherein the bitmap indicates the one or more paging occasion start locations at a start of an uplink-downlink concatenated pattern of a paging frame. 
     
     
       5. The apparatus of  claim 4 , wherein a duration of the paging frame is divided into blocks, each block corresponding to a period of the uplink-downlink concatenated pattern. 
     
     
       6. The apparatus in  claim 1 , wherein the one or more paging occasions include one or more physical downlink control channel monitoring occasions. 
     
     
       7. The apparatus of  claim 1 , wherein the apparatus comprises or is comprised in a user equipment. 
     
     
       8. A method comprising:
 receiving, by a user equipment, information from a base station, the information indicating a start of one or more paging occasions within at least a portion of a subframe, the information comprising a bit map indicating the start of the one or more paging occasions within at least the portion of the subframe, wherein a bit length of the bit map is based on a subcarrier spacing being used, such that the start of the one or more paging occasions is based on the bit length and the subcarrier spacing being used; and 
 monitoring, by the user equipment, the one or more paging occasions in accordance with the received information including the bit map. 
 
     
     
       9. The method of  claim 8 , wherein the base station provides a different bit map based on the subcarrier spacing being used at the user equipment. 
     
     
       10. The method of  claim 9 , wherein the bit length of the bitmap depends on a quantity of slots, the quantity of slots based on the subcarrier spacing being used by the user equipment and a time division duplex pattern length being used by the user equipment. 
     
     
       11. The method of  claim 9 , wherein the bitmap indicates the one or more paging occasion start locations at a start of an uplink-downlink concatenated pattern of a paging frame. 
     
     
       12. The method of  claim 9 , wherein a duration of the paging frame is divided into blocks, each block corresponding to a period of the uplink-downlink concatenated pattern. 
     
     
       13. The method of  claim 8 , wherein the one or more paging occasions include one or more physical downlink control channel monitoring occasions. 
     
     
       14. An apparatus comprising:
 at least one processor; and 
 at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least:
 send, to a user equipment, information indicating a start of one or more paging occasions within at least a portion of a subframe, the information comprising a bit map indicating the start of the one or more paging occasions within at least the portion of the subframe, wherein a bit length of the bit map is based on a subcarrier spacing being used, such that the start of the one or more paging occasions is based on the bit length and the subcarrier spacing being used; and 
 trigger one or more paging occasions in accordance with the sent information including the bit map. 
 
 
     
     
       15. The apparatus of  claim 14 , wherein a different bit map is sent based on the subcarrier spacing being used at the user equipment. 
     
     
       16. The apparatus of  claim 14 , wherein the bit length of the bitmap depends on a quantity of slots, the quantity of slots based on the subcarrier spacing being used by the apparatus and a time division duplex pattern length being used by the apparatus. 
     
     
       17. The apparatus of  claim 15 , wherein the bitmap indicates the one or more paging occasion start locations at a start of an uplink-downlink concatenated pattern of a paging frame.